package com.atguigu.gulimall.product.exception;

import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
      log.error("数据检验出现问题{},异常类型{}",e.getMessage(),e.getClass());
        BindingResult bindingResult=e.getBindingResult();

        Map<String,String> errorMap=new HashMap<>();
        bindingResult.getFieldErrors().forEach(fieldError -> {
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        return R.error(400,"数据检验出现问题").put("data",errorMap);
    }
}
